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Message ID: 232     Entry time: Wednesday, January 10, 2018, 17:45
Author: Isaac Earle 
Category: Standard Operation 
Type: Target 2 
Specific: Target 
Subject: T2-MK2 beam spot photos, M20BB moved to storage pit 

 The T2-MK2 target was moved from the beamline to the hot cell on January 8th.  The field at 0.5m was 130mSv/hr.  Photographs of the beam spot of the Position 4 target are attached below.  This is a 12mm beryllium target (ID: "JUL.06#4).  This is the only target on the T2 ladder that has seen beam since it was installed on October 10, 2017.  A shielding plug was installed on the T2 flange.  A new 5cm target will be installed on the T2-MK2 ladder after fabrication is complete.  Regular testing and maintenance of the target assembly will also be performed before it is returned to the beamline.

The M20 beam blocker was also moved from the beamline to Hole #7 in the storage pit.  The field at 0.5m was 22mSv/hr.  A blank-off plate was installed on the M20BB flange (no o-ring).  Seal replacement and general inspection/testing will be performed before it is returned to the beamline.

 

T2-MK2_Position_4_beam_spot_photo_-_12mm_Be_-_Jan_10_2018_s.jpg

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